MIHANA SEISAKUSHO CO., LTD.

Description of business

Mihana Seisakusho has successfully developed a safety valve with superb functionality, rendering conventional standards obsolete. Their safety valve is based on lapping technology, a form of surface grinding. Their current focus is extending this technology to other manufacturing fields for improved products.

Safety valve

Safety Valves

Exclusive lapping technology

Internal structure

Products and Technologies

Safety and Relief Valves Revolutionizing Industry

Conventionally, leakage with valve operation has always been considered to be part and parcel of the nature of valves to the extent that leakage is included in valve standards in Japan and throughout the world. Until now.Mihana Seisakusho is revolutionizing the way industry looks at valves.

In a safety valve endurance test comprising 100 operations, Mihana Seisakusho’s valve was found by a public agency to have no leakage. Another innovative feature is that the blowing and blow-off phases happen essentially simultaneously.

●ApplicationsThe Mihana Seisakusho safety valve is used in a wide range of applications including such industrial devices as compressors and boilers, automobiles and containers, food processing equipment and medical devices. It is also used in the such industries as electrical power, petrochemicals, manufacturing and atomic energy.

Safety Valves without Front Leakage

Mihana Seisakusho produces their safety valves using an advanced lapping (grinding) technology that eliminates front leakage (during the blow phase). No leakage was found even in tests with 100 repeat operations using a Mihana Seisakusho test device.